Muffle furnace Active Only CAB

brazingelectricgas

This semi-continuous system allows for variable heating and cooling rates, depending on indexing times. This furnace can braze the widest variety of heat exchangers when lower total production requirements are needed. Our Active Only® Convection CAB furnaces are based on a multi-step indexing cycle. The product runs in a horizontal position with an infinitely adjustable dwell time based on the hearth load and load configuration. The load thermocouples are predicting the actual temperature of the product. It allows for automatic control of the required heating time for different types of the heat exchangers. The furnace ensures a uniform preheat of product through a patented convection muffle configuration. The Vertical Brazing CAB furnace is a uniquely designed version of an Active Only® indexing furnace where the brazed elements are positioned horizontally. For some types of heat exchangers such orientation provides benefits as the cladding melts. Vertical positioning of the heat exchanger allows the joints to be evenly filled on a horizontal plane, preventing the brazing alloy from accumulating on one side of the heat exchanger. Additionally, the furnaces in semi-continuous configuration also are using a vacuum purging. This solution limits the nitrogen consumption and improves furnace-atmosphere cleanliness. Due to vacuum flushing in the furnace vestibule, air is removed not only in the chamber but also from the internal openings of the heat exchanger. Furnaces of this type may be used in the production of some types of heat exchangers (such as PLATE & BAR), which previously required a more expensive technology of brazing in vacuum furnaces.